Which condition would NOT qualify as a permanent total disability?

The condition that would not qualify as a permanent total disability is blindness in one eye. Permanent total disability generally implies a condition that significantly impairs an individual's ability to perform any gainful employment.

While blindness in one eye is indeed a serious condition, it typically does not prevent a person from performing many types of work and does not render them incapable of engaging in substantial gainful activity. In contrast, the other conditions listed, such as the loss of both legs, complete paralysis of one leg, or permanent mental incapacity, would severely limit an individual’s ability to function and work, thus meeting the criteria for permanent total disability.

Hence, blindness in one eye does not meet the threshold necessary for a classification of permanent total disability, as individuals can often adapt and still engage in various forms of employment despite this impairment.